Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
03008excellentexcellent11excellent
02009excellentexcellent11excellent
010015excellentexcellent21excellent
000014excellentexcellent21excellent
23009excellentexcellent21excellent
220011excellentexcellent21excellent
210010excellentexcellent21excellent
200010excellentexcellent31excellent
190010excellentexcellent31excellent
180010excellentexcellent21excellent
170010excellentexcellent21excellent
16007excellentexcellent11excellent
15005excellentexcellent11excellent
14003excellentexcellent11excellent
13005excellentexcellent11excellent
12007excellentexcellent21excellent
11006excellentexcellent21excellent
10005excellentexcellent11excellent
09005excellentexcellent11excellent
08005excellentexcellent11excellent
07004excellentexcellent11excellent
06003excellentexcellent11excellent
05004excellentexcellent11excellent
04004excellentexcellent11excellent